Soudal Soudafoam FR HY is a high-performance, single-component polyurethane filling foam that offers a professional solution for passive fire protection. This specialized 750 ml foam is designed to prevent the spread of fire, smoke, and toxic gases. Depending on specific application details, it provides fire resistance for up to 360 minutes (6 hours)—in accordance with DIN 4102 Class B1 and EN 1366-4 standards—thereby maintaining the integrity of vital fire compartments within buildings.
It not only retards fire but also ensures an excellent seal against gas and smoke. Boasting high thermal and acoustic insulation values ​​(up to 62 dB), Soudafoam FR HY adheres excellently to most construction materials (with the exception of Teflon, PE, and PP). Once cured (dried), it does not expand or shrink, provides a stable fill, and can be painted over.
Frequently Asked Questions (FAQ)
1. What are the primary uses of this foam? Soudafoam FR HY is used for the installation and insulation of fire-resistant door and window frames, in connection joints between partition walls, ceilings, and floors, for filling gaps around cable and pipe penetrations, and in all passive fire-stopping systems requiring fire and smoke insulation.
2. What does the foam's fire resistance class (B1) mean? According to the DIN 4102 standard, "Class B1" indicates that the material is "flame-retardant" and difficult to ignite. When the ignition source is removed, the material is expected to self-extinguish and not propagate the flame. This makes it much safer than standard B2 or B3 class foams.
3. How is the product applied, and can it be painted after drying? This is a "gun-grade" foam; it requires a special polyurethane foam gun for application. (Manual versions with a straw are also available, but this specific model is generally designed for use with a gun). It is applied by turning the can upside down and using the gun's trigger. The foam forms a skin within approximately 10 minutes due to atmospheric moisture and becomes ready to cut in about 50 minutes. Once fully cured (approx. 24 hours), excess material can be trimmed, sanded, and painted over.